The Journal of Organic Chemistry

Antimony (III) chloride exerts potent catalysis of the conversion of sulfoxides to. alpha.-fluoro thioethers with (diethylamino) sulfur trifluoride

SF Wnuk, MJ Robins

Index: Wnuk, Stanislaw F.; Robins, Morris J. Journal of Organic Chemistry, 1990 , vol. 55, # 15 p. 4757 - 4760

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Citation Number: 73

Abstract

phenylalanine and methylisocyanate according to the method of Dudley and B id 4 in an overall yield of 50%. The intermediate L-2-benzyl-5-methylhydantoin acid that precipitated at pH 2 was isolated and cyclized to optically active L-5-benzyl-3-methylhydantoin by refluxing in 0.5 N HC1 for 30 min. The white crystals were washed with cold water and dried in vacuo: mp 166-167